And edwin smedlet



l 2 Sheets- Sheet 1.

(No MdeL) v C. H. HUDSON 85B. SMBDLEY.

STEAM PUMP. No,I 260,099. A .Patented June 27', 1882.

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(No Moden.) 2 s'eets-sheet 2.

C. HUDSONK?l E. SMEDLBY.

10.260.099 Patnd June 27, 1882..

raza azu'. M f/M UNITED STATES PATENT OFFICE.

OEAELES II. HUDSON, or HINSDALE, ILLINOIS, AND EDWIN SMEDLEY, OFDUBUOUE, IOWA.

STEAM-.PUM P.

SPECIFICATION forming part of Letters Patent No. 260,099, dated June 27,1882.4 Application filed February 10, 1882. (N o model.)

To all whom it may concern Beit known that We, CHARLES H. HUDSON, ofHinsdale, Du Page county, in the State of Illinois, and EDWIN SMEDLEY,of Dubuque,

in the county of Dubuque and State of Iowa,

have invented certain new and useful Improvements in Steam-Pumps and wedo hereby declare that the following is a full, clear, and 'exactdescription of' the invention, which will ena- Io ble others skilled inthe art to which it appertaius to make and use the same, reference beinghad to the accompanying drawings, and to letters of reference markedthereon, which form a part of this specification.

Our invention relates to a Special construction of steam-pump, suchconstruction having removable valve seats and transparent caps or plugs,whereby the valve-seats and the valves may readily be removed orinserted,

zo and whereby the aotionof the pump can also be seen Without removingthe top or cap of the pum p, and to other particulars hereinafter moreparticularly set forth.

In the drawings, Figure l shows, partly in elevation and partly invertical section through the line x x of Fig. 2, a pump made to embodyour invention. Fig. 2^is a section/of the pump in line y y of Fig. l,and Figs. 3 and 4 are details.

A is a cylinder or casing of the pump, within which are ,the piston B,removable valveseats C G, and valves D D.V When the piston B (which isto be connected at the opposite end of the piston-rod b to thesteam-piston of a steam-engine) is worked backward and forward by thesteam in the cylinder 'of such engine it forces the water in the pumpthrough the respective passages 1 2 3 4, and the pressure raises theappropriate one of the valves D D D D, and thus the Water escapesthrough the valve-openings 5, 6, 7, and 8, respectively, and thenthrough the exit-passage.

The valveseats C C, which are made of metal or other suitable materialandare dovetailed, as shown in Fig. 3, enter corresponding grooves inthe case A, so that the valve-Seats may be slid in and out at pleasure,and thus do away with the necessity of removing the top of the pump ortaking the casing apart 5o when it is desired to clean the pump .orrepair the valves, &c. These valve-seats, also, are

held in place by caps or plugs E,y Screwed or scribed, and Vfor thepurposes set forth.

otherwise held on each side of the case A, which caps are preferablyprovided each with a glass pane, c', as shown in Figs. l and 2, so 55that the actionof the valves D D may be seen Without removing these capsor plugs. The valve-seats have round or circular openings 5 6 7 8 toadmit the valves, which latter We prefer to make ot' a somewhattriangular shape 6o in cross-section, (see Fig. 3,) or having a flatside or sides, so that when raised ever so little the Water will bepermitted to pass'betvi een its sides and the periphery of the openingsof the valve-seat. But We Wish it to be understood that We do. not limitourselves to this particular form and shape, but We may use a valve ofball,wiug, or other shape, and it may be of metal, rubber, or othersuitable material.

vA trough, F, may connect the pump to the 7o engine which may be used tooperate it, and it may extend under andA parallel with the piston-rod b,to catch any drippings and Waste water or oil from this rod or adjacentparts. (See Figs. l and 4.)

We claiml. The removable valve-seat adapted to be slid to place in itsbed and to be slid out from its bed through a side opening,substantially as shown and described.

2. ln combination with the side openings for insertingand removingslidin g valve-seats, the screw-caps for such openings having glasses orWindows therein, all substantially a's de- 8 '3. In combination withdovetailed valve- 5 Seats adapted to be slid into and removed from bedshaving corresponding dovetailed grooves, removable caps serving toconfine such seats to their position in the pump and to permit theremoval therefrom of the seats and the valves,

as shown and described.

4. In combination with the removable valve- Seat and the valve carriedthereon, a removablescrew-cap, which, besides permitting the insertionand removal ofthe seat and its valve, serves also to hold the seat toplace, as shown anddescribed 1 CHARLES H. HUDSON. EDWIN 4 SMEDLEILWitnesses:

E. B. CADE, W. B. PALMER.

